Chock-block.



1, HOOK.

CHOCK BLOCK.

APPLICATION FILED AuG.I2. 1916.

1 203,340. Patented Oct. 31, 1916.

:lIxIwIIhIIY :the closure. a l'5-.5- of F ig. 1. iFig. Gis a sectionaldetail UNITED STATES "PATENT GFFICE.

JOSEPH-HOOK, fOF MOOSIC, PENNSYLVANIA.

CHOCK-BLOCK.

Application led August 12, 191,6.

.TaaZZ whom-tammy concern Be itknownlthat JI, JOSEPH Hooiga citi- -zen`oftheaUnited States, residing .at Moosic,

for mining :cars and so constructed `that `when in use it-cannot.turnrat an angle or become derailed-,and whenlnot in use-itVoccupiesaminimum offspace.

.Details will :be ffound in the following specification, reference beinghad to the drawings whereim- Figure-1r isa left side ,viewgofA-thisvdevice `aseits.1pai:ts .stand whenitis'in use. Figs. 2 and 3 areperspective viewswith jthe arms respectively=raised,and ilowered. Fig. 4is a-sectional detail showingthe .fastening of Fig. 5 is :a ,section on-the v line ofa slight modification.

Thebase ortread ofY this chock block com- .prisesa-'shoe i1 /beveledfoffat its rear end Ias ati2, its :frontend or toe 3 being beveled onzitsunderside as 'at 4.and across thefup- :per .faceof `the shoe `issecuredvor formed thereon anznpstanding-rib. 5 whose front end.isundercut or hooked-solas to leave an openy ing G. Secured along`oneedgeof the shoe .is .a-v flange? which has :af shoulder: 8` where itextends past the rib, its upper edge .being beveled olf as at 9 in rearof said shoulder and its front-.exkl being deflected outward as at 10.

'The parts f thus Ifar: described may .all be formed of one piece ofmetal, and the-lower face of the shoe is intended to travel on the ballof the rail R while the wheel 'W is intended to ride up over the shoe 1and rest against the rib 5. The chock block is connected by a chain Cwith some part of the car as usual, the chain being connected with thefront end or toe 3 of the shoe in any suitable manner as by means of aclevis 11 mounted thereon as seen in the drawings, and when the car isdrawn along the rail it is obvious that the wheel will rest on thegspeeication of Leiters raient.

joints.

Patented offesa-,1916. Seria1-No11.4,628.

chock -block .while ,the `lower face of the shoe slides along the .ballof the rail and the .fla-nge against .its-edge. ,The-upper edge of theyflange `is ybeveled 'off asat 9 to permit -the flange of ,the ywheelto:passdown beside it as will ybe' clearly understood, vand .the

-front .end of the `flange r7 is :bent @outward as.at1( sothat it twilliride alongside ,the .rail while theitoe Bisbeveled on the under side asat 4 so that it will ,ride over rail Experience-.has VVproven that,`despite `the lengagement of the wheelrflange with lthe c hockblock.andof ,the ,flange on ythelatter with the rail, these `blocks do oftentvvistout ,of place and become :letached and 'in order `rto avoid thiscontingency I `make use ofa ...guide `for so lockingthe'. chock blocktothe wheel .that `it cannot vmove relatively. theregto, and .thereforeas longas the wheelover- .liestthe rail the'block will.' 'lhisguide'isof ,general :,U-shape formation, comprising inner andV outerc arms 12and 13 connected by shaft l111 -which passesfthrougha ,throat 6 of `theVhookfgshaped rib For preventits escape .therefrom .'Ima-ke usevof aclosure l5 which may'fwellbe a block secured upon the front end of theshoe as by bolts or screws 16 to render lit lremovable -whenthe `guideis tobe takenout yforfany rea-son. It will be seen from', the plan view.in the Vdrawings-that v the 4distance between Llthe farms 12 andl'fisgreater rthan-the ,com- Y Y Vbined width vof theshoe landzflangeA7, and therefore the shaft lmay'both rotate and reciprocate. On thatend of the rib opposite the shoulder 8- is Yformed a4 projection or.vlug 17 whose use isV best seen infFig.` 5.

,Normally the parts stand ,as in Fig. l,

:with the armlQresting` on thefshoulder and therefore4 thel entirelguide ystanding parallel withthe upperfaceof ,the shoe, `and in" thisposition the chock block .occupies the least .possible space .and canbestored with ease. V,l/Vhen it is to be used the entire guide is movedby sliding the shaft 14 in the opening 6 so as to free the guide arm 12from the shoulder, then both arms are raised, and finally the otherguide arm 13 is pressed inward against therib 5 above the lug 17,

at which time the arms will stand oblique to the shoe and will extendalongside the wheel W. The latter now rests on the shoe 1 and againstthe rib 5 and its flange passes down alongside the flange 7 of the chockblock with the result that the position of the wheel on the shoe is suchthat the guide cannot move laterally through the rib and therefore thearm 13 cannot disengage the lug 17. Hence both arms of the guide aremaintained in a raised position alongside the wheel, and the chock blockas a whole cannot move laterally with respect to the wheel.

I have shown theshaft 14 as square, and if so it must fit the openingrather loosely. In Fig. 6 the square shaft 14 stands a little bias tothe length of the guide arms 12', and the closure 15 is adjustabletoward the rib 5 by means of a set screw 16. With this construction ofthe device it is obvious that when the guide arms are raised so that thesquare shaft has its faces parallel with those of the square opening 6,adjustment of the closure by means of the set screw clamps two oppositefaces therein and holds the guide raised irrespective of its engagementwithy the lug 17 which latter may therefore be used or not, although forsafety sake I prefer to use it in any case.

IVith this construction of my device, as with that above described, thenormal or storage position of parts is with one arm overlying theshoulder 8 so as to occupy the least space, but the working position iswith both arms oblique to the shoe so that the guide straddles the wheeland the chock block is prevented from lateral movement with respect tothe same. When the device is not in use the chain C is disconnectedYfrom the truck or other point of attachment and the entire articleremoved and laid aside.

I'Vhat I claim is:

1. In a chock block, the combination with a shoe, and a raised ribthereon; of a guide movably mounted through said rib and having armsadapted to lie parallel with the shoe or be raised above the samealongside the wheel, and means for holding them raised.

2. In a chock block, the combination with a shoe having a raised rib,and a iiange alongside the shoe and having a shoulder alongside the rib;of a guide movably mounted through said rib and having arms adapted tolie parallel with the shoe and one of them upon said shoulder or to beraised so as to stand astride the wheel, and means for holding themraised.

3. In a chock block, the combination with a shoe, a raised-rib thereonhaving a transverse opening, and a flange along one side of the shoeprovided` with a shoulder extending alongside said rib; of a shaftrotatably mounted in said opening and of greater length than the rib sothat it may be slid through such opening, arm-s fast on the ends of theshaft and one of them adapted nornially to rest on said shoulder, and alug on the rib adapted to be engaged by one kof said arms when thelatter are raised.

4. In a chock block, the combination with a shoe, a raised hook-shapedrib thereon, a

closure over the throat of said hook, and

means for fastening the closure in place; of a shaft loosely mounted inthe throat ofthe hook, parallel arms projecting rigidly from the ends ofsaid shaft, and means for holding them elevated at an angle to the shoe.

5. In a chock block, the combination with a shoe, an upstandinghook-shaped rib upon the same, a closure for the throat of said hook,the parts being shaped to produce a rectangular opening, and means foradjusting the position of the closure; of a guide including a pair ofarms and a rectangular shaft connecting their forward ends and eX-tending through said opening, for the purpose set forth.

6. A chock block comprising a shoe bev-` eled'of on its upper face onits rear end and having its toe beveled off on its under face, a clevison said toe, a flange secured to one side of the shoe and beveled off atthe upper edge at its rear end, shouldered forward of said bevel, anddeflected outward at its front end, and a rib rising from the shoeopposite said shoulder, combined with a guide movably mounted in saidrib and comprising a pair of arms adapted to stand parallel with theshoe or oblique thereto and astride a car wheel.

In testimony whereof I affix my signature.

JOSEPH HOOK.

Copies of this patent may be obtained for ive cents each, by addressingthe Commissioner of Patents, Washington, D. C.

